Removal And Installation Of Pump Controller Assembly - Komatsu PC88MR-10 Shop Manual

Removal and installation of pump controller assembly

Place the machine on a level ground and
lower the work equipment to the ground in a
stable posture.
Stop the engine, turn the battery disconnect
switch to OFF position, and remove the key.
(For details, see Testing and adjusting,
"Handling battery disconnect switch".)
Set the lock lever in LOCK position.
a Note the connector numbers and installed
positions before disconnecting wiring harnesses
and hoses.
Removal
(PC88MR-C3V1-520-K-00-A)
1. Remove upper side cover (1) at the rear side of
the operator's seat.
2. Remove mounting bolt (2), and remove bracket
(3).
3. Open harness clip (4), and remove the harness.
4. Disconnect harness connectors P01 (6) and P02
(7) from pump controller assembly (5).
a Press connector release portions (a) of
harness connectors (6) and (7), and pull
levers (8) inward.
5. Remove mounting bolts (9) (4 pieces), and
remove pump controller assembly (5).
Installation
PC88MR-10
50 Disassembly and assembly
Installation
(PC88MR-C3V1-720-K-00-A)
Perform installation in the reverse order to
removal.
a Remove all dirt from the harness connectors,
and then install the assembly.
Electrical system
(PC88MR-C3V1-924-K-00-A)
50-219